Companies have no control over it. And yes, you see it all the time, almost every online retailer does it. Let's take a look at, say, the Prophet 100, just to standardize things:
Line website states that the ski costs $600, so we'll assume that is the MSRP.
Getboards: Price $600, "retail price $800"
Twitipnation.com: "our price $599, MSRP $800, save 25%!"
Backcountry.com: "Price: $599, Suggested Retail: $800"
So, all the online retailers are claiming to sell the ski "cheaper than retail." But guess what, they are selling for exactly retail. So people think that they are getting a deal, and this leads to the misconception that online retailers sell cheaper than shops.
But guess what these skis cost at my local shop: $599. Because that is the real MSRP
My experience has been that the only way to really save money by buying online is by buying last year's equipment in the sale section or the outlet section. This is the real reason people save money online. I can't go to my local shop and get last year's Prophet 100 for $499 because the don't have any old gear, but I can go to Getboards and get it for that price.
So here's my next idea for shops: don't throw all of last year's stuff out to outlet retailers, sell it yourself at a reasonable discount to win back some of the backcountryoutlet.com crowd. And DO NOT sell last year's stuff at no discount, even if the product hasn't changed significantly. My local shop is selling K2 Seth's for $629 (this is the SAME as Getboards or backcountry, even though those places claim to be selling for "less than retail")... but they are also selling last year's K2 Seth for $629, saying that the only difference is cosmetic (not even quite true) so the "value" of the ski is the same.